madddog Posted March 7, 2014 Share Posted March 7, 2014 need help have problem with 2009 mack gu713 went out to start this morning to warm up. started fine but as soon as it started and was running I had 2 lights on the red gear with oil drop in the middle and temp sign next to it and the lighten bolt. I let run for about a min or so the red gear light went out then about min after the red circle with an x came on and truck shuts down this is over a min or two period. so I turn off key started again same thing only no red gear just the red circle with x so I tried to put in gear then not throttle response I am lost any help would be great Quote Link to comment https://www.bigmacktrucks.com/topic/34945-2009-mack-gu713-lighting-bolt-and-red-circle-with-x-light-on/ Share on other sites More sharing options...
Kyle 537 Posted March 7, 2014 Share Posted March 7, 2014 Can you pull codes off the display?Sent from my iPhone using Tapatalk Quote Link to comment https://www.bigmacktrucks.com/topic/34945-2009-mack-gu713-lighting-bolt-and-red-circle-with-x-light-on/#findComment-236187 Share on other sites More sharing options...
j_martell Posted March 7, 2014 Share Posted March 7, 2014 Transmission temp/level sensor forcing a shut down? Quote Lack of planning on your part does not constitute an emergency on my part.... Link to comment https://www.bigmacktrucks.com/topic/34945-2009-mack-gu713-lighting-bolt-and-red-circle-with-x-light-on/#findComment-236227 Share on other sites More sharing options...
Challenger Posted March 8, 2014 Share Posted March 8, 2014 I think its the oil temp light. The oil temp and oil pressure are the same sensor. If you have an MP 8 the oil temp/pressure sensor is behind the Engine ECU. You will see 2 sensors that look alike, one on top of the other. The top one is the oil temp/pressure, the bottom one is the crankcase pressure sensor. On the right side of the engine in the oil filter housing is the piston oil cooler temp sensor. Check all 3 sensor for leaking (wicking) oil, if any are leaking(wicking), replace them. All 3 sensor have been updated so it would be a good idea just to do all 3.But like Kyle Gandy asked, whats the code? Without the code it just guesses. Quote Link to comment https://www.bigmacktrucks.com/topic/34945-2009-mack-gu713-lighting-bolt-and-red-circle-with-x-light-on/#findComment-236393 Share on other sites More sharing options...
Macktech689 Posted March 8, 2014 Share Posted March 8, 2014 The oil temp sensor is actually in the oil pan combined with the oil level sensor. double check the coolant level. Quote Link to comment https://www.bigmacktrucks.com/topic/34945-2009-mack-gu713-lighting-bolt-and-red-circle-with-x-light-on/#findComment-236396 Share on other sites More sharing options...
j_martell Posted March 9, 2014 Share Posted March 9, 2014 need help have problem with 2009 mack gu713 went out to start this morning to warm up. started fine but as soon as it started and was running I had 2 lights on the red gear with oil drop in the middle and temp sign next to it and the lighten bolt. I let run for about a min or so the red gear light went out then about min after the red circle with an x came on and truck shuts down this is over a min or two period. so I turn off key started again same thing only no red gear just the red circle with x so I tried to put in gear then not throttle response I am lost any help would be greatThat light is what leads me to belive its transmission related. Maybe i missed it, but is it an auto or stick? If an auto, low/hot fluid might warrant a shutdown. Codes would definately help with diagnosis. Quote Lack of planning on your part does not constitute an emergency on my part.... Link to comment https://www.bigmacktrucks.com/topic/34945-2009-mack-gu713-lighting-bolt-and-red-circle-with-x-light-on/#findComment-236589 Share on other sites More sharing options...
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